University of Toronto Engineering Society - Skule Yearbook (Toronto, Ontario Canada)

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Everywhere across Canada — in industrial plants, waterworks systems, commercial and institutional buildings of all kinds — and in every type of in- stallation where precise control of steam, gas, water, oil and other fluids is required, the Jenkins ’“Diamond” trademark is the hallmark of quality- • engineered valves. For close to a century, the Jenkins trademark has been the trusted symbol of unrivalled craftsman- ship, top-flight performance and exceptional economy. To be sure of dependable, trouble-free operation and long-term savings in maintenance, specify Jenkins Valves. Jenkins Bros., Limited, Lachine, Que. 8

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In wood preservation, the one test... the only test ...is TIJVIE In this, our 25th year, we look with pride to the thousands of OSMOSE jobs . . . including our first in 1936 . . . which ore still standing the test of time. Mining Timbers, OSMOSE-treafed in 1 936 Ties, OSMOSE-treafed Poles, OSMOSE-freated in 7 93 8 — still serving in 1936 — still serving Bridge, OSMOSE- treated in 1 940 — still serving From coast to coast . . . Guardrail posts, OSMOSE-treated in 1943 — still serving and around the world . . . we are ready to serve, wherever the use of wood is indicated. WOOD PRESERVING COMPANY OF CANADA ITOv 1080 PRATT AVENUE, M O N T R E A L i P. Q . TRURO i TORONTO • WINnIpEG TiVEDMONTON • VANCOUVER Flume, OSMOSE- treated in 1936— still serving

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We major m CHAIN Package Engineering :: Our specialty is a science, too: the design and production of corrugated packaging. Someday, perhaps the product you engineer will be shipped in a Hinde Dauch box. HIMBE DAUCH Subsidtary bt SI. Lawrence Corporation L rnile l AUTHORITY ON PACKAGING • TORONTO 3, ONTARIO MADE IN CANADA Tow and Log Chains TNSWEI.L ELECTRIC WELDED CHAIN — The Superior Chain with | the Distinctive Weld i Proof — BBB — High Test — Alloy HAMMERLOK Coupling Links • Hooks • Links • Rings HERC-ALLOY in running links and slings. Claw and Dreadnaught Tire Chains COLUMBUS McKINNON LIMITED (formerly McKinnon Columbus Chain Limited) ST. CATHARINES, ONT. Manufacturers of Quality Chains and Attachments, Hand and Electric Hoists, Trolleys, Forgings Stampings RAIL STEEL REINFORCING BARS Leading Engineers, Architects and Contractors have been consistent users of Burlington Rail Steel Rein- forcement for over a third of a century- BURLINGTON STEEL COMPANY LIMITED HAMILTON, ONTARIO 9